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Simple Analytical Method for Performance of an Absorber Plate in Flat-Plate Solar Collectors for Two-Dimensional Heat Flow Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Numerical Investigation of Solar Air Heater Duct with Square Transverse and Inclined Ribs

Authors : Gaurav Lad, Nikhil Raghuvanshi, Pranshu Mehrotra, Ankur Srivastava

Published in: Advances in Fluid and Thermal Engineering

Publisher: Springer Singapore

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Abstract

A numerical investigation has been carried out in order to investigate the effect of artificial roughness on heat transfer coefficient and pressure loss of air flow through an asymmetrically heated rectangular solar air heater duct with constant heat flux condition on absorber plate. Reynolds number is varied from 3000 to 15000. Artificial roughness in the form of transverse and inclined ribs is applied to the surface of the absorber plate. Heat transfer coefficient, friction factor and thermo-hydraulic performance parameter (THPP) are calculated for the range of roughness parameters; relative roughness pitch (P/e) from 11 to 25 at constant relative roughness height (e/D) of 0.8. RNG k- ε turbulence model has been selected for CFD simulation. Artificially roughened surface increased heat transfer coefficient at the expense of increased pressure loss of air flow through the duct.

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Metadata
Title
Numerical Investigation of Solar Air Heater Duct with Square Transverse and Inclined Ribs
Authors
Gaurav Lad
Nikhil Raghuvanshi
Pranshu Mehrotra
Ankur Srivastava
Copyright Year
2019
Publisher
Springer Singapore
Book
Advances in Fluid and Thermal Engineering

Print ISBN: 978-981-13-6415-0

Electronic ISBN: 978-981-13-6416-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-981-13-6416-7_42

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